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Finding the Fourth Proportional to 295,115.78, 407,254.96 and 167,788.64

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Solution

The fourth proportional to 295,115.78, 407,254.96 and 167,788.64 is: 231,545.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,115.78 : 407,254.96 = 167,788.64 : x
  2. Step 2: Convert to fraction form
    295,115.78/407,254.96 = 167,788.64/x
  3. Step 3: Cross multiply
    295,115.78x = 407,254.96 × 167,788.64
  4. Step 4: Simplify right side
    295,115.78x = 68,332,755,871.65
  5. Step 5: Solve for x
    x = 68,332,755,871.65/295,115.78
  6. Step 6: Final answer
    x = 231,545.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.